<template>
    <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from "echarts";
require("echarts/theme/macarons"); // echarts theme
import resize from "./mixins/resize";

const animationDuration = 6000;

export default {
    mixins: [resize],
    props: {
        className: {
            type: String,
            default: "chart"
        },
        width: {
            type: String,
            default: "100%"
        },
        height: {
            type: String,
            default: "300px"
        },
        chartData: {
            type: Object,
            required: true
        },
    },
    data() {
        return {
            chart: null
        };
    },
    mounted() {
        this.$nextTick(() => {
            this.initChart();
        });
    },
    watch: {
        chartData: {
            deep: true,
            handler(val) {
                this.setOptions(val);
            }
        }
    },
    beforeDestroy() {
        if (!this.chart) {
            return;
        }
        this.chart.dispose();
        this.chart = null;
    },
    methods: {
        initChart() {
            this.chart = echarts.init(this.$el, "macarons");
            this.setOptions(this.chartData)
        },
        setOptions({xAxis, series} = {}) {
            this.chart.setOption({
                tooltip: {
                    trigger: "axis",
                    axisPointer: {
                        // 坐标轴指示器，坐标轴触发有效
                        type: "shadow" // 默认为直线，可选为：'line' | 'shadow'
                    }
                },
                grid: {
                    top: 10,
                    left: "2%",
                    right: "2%",
                    bottom: "3%",
                    containLabel: true
                },
                xAxis: [
                    {
                        type: "category",
                        data: xAxis,
                        axisTick: {
                            alignWithLabel: true
                        }
                    }
                ],
                yAxis: [
                    {
                        type: "value",
                        axisTick: {
                            show: false
                        }
                    }
                ],
                series: [
                    {
                        name: '发送条数',
                        type: "bar",
                        stack: "vistors",
                        barWidth: "60%",
                        data: series,
                        animationDuration
                    }
                ]
            });
        }
    }
};
</script>
